1. Reason: Black spots on Koi are likely to be caused by poor water quality, aging water quality or deterioration of water quality. Because the water quality is too poor, it is easy to breed bacteria, and the resistance of Koi carp will also decline, so there will be bacterial infections and so on.
2. Treatment method: The breeder needs to change the water immediately, but the amount of water should not be too large and should be controlled at one third of the total amount of water. If conditions permit, you can clean the fish tank, and then clean it with sterilization and disinfection drugs.
1. Reason: Black spots on Koi carp may also be drug poisoning, such as excessive feeding of drugs or the restriction of two drugs.
2. Treatment: Breeders need to judge according to the drugs they have used, and it is better to go to the pet hospital to seek the help of professional veterinarians.
1. Reason: Black spots on koi carp may also be caused by black spot disease, mainly due to parasitic infection. The main symptom of melasma is small black spots on the body, which can fester in severe cases.
2. Treatment: The breeder can repeatedly raise the water temperature and use the temperature difference to kill the parasites, but the change of the temperature difference needs to be within the acceptable range of the koi. Potassium permanganate solution can also be used to clean the affected area, or potassium permanganate solution can be used directly for medicated bath. During the treatment period, the koi should be exposed to the sun frequently, and it is better to change one third of the water every day.
